CVE intelligence and bounded remediation

CVE-2023-49091 — Cosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager

Critical CVSS 9.8

Cosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager. Cosmos-server is vulnerable due to to the authorization header used for user login remaining valid and not expiring after log out. This vulnerability allows an attacker to use the token to gain unauthorized access to the application/system even after the user has logged out. This issue has been patched in version 0.13.1.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-11-29
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-613

Affected products

  • cosmos-cloud / cosmos_server / 0.1.15
  • cosmos-cloud / cosmos_server / 0.1.16
  • cosmos-cloud / cosmos_server / 0.1.17
  • cosmos-cloud / cosmos_server / 0.2.0
  • cosmos-cloud / cosmos_server / 0.3.0
  • cosmos-cloud / cosmos_server / 0.3.1

Showing 6 representative product identities from 91 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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